How can i disable a particle base object from render?
Disable &quot;show emitter&quot;

Will have effect in rendering only (not when viewport shading is set to rendered).
Seems I've misunderstood the question. To hide the original particle object, put it in another collection and disable this collection for rendering.

Note that if the PS instances are based on a collection, move this collection in another one and disable this last one for rendering.